The _______ ________ lacks arteries and begins with blind-ended lymph capillaries. This it is a return system only.
lymphatic system
Right Lymphatic Duct
drains right half and upper torso, head, and right arm
Thoracic Duct
drains to all body except right half upper torso head, and right arm
The Cisterna Chyli...
-is and enlarged terminus of thoracic duct
-receives lymph from the digestive viscera
-composition of the lymph in this section is very fat rich
Major Functions of the lymph nodes
-remove debris from the lymph
-provide a site for cloning and multiplication of lymphocytes
Lymphocytes B
-upon antigen challenge, they clone to produce daughter cells, most of which are plasma cells that release antibodies to the blood (humoral response)
Lymphocytes T
-mount cell mediated immunity
-Attack virus infected cells, tumor cells, bacteria, etc.
-Also activates B cells and enhance the migration of other WBCs into the area to help destroy antigens
Antigen
molecule capable of provoking an immune response
Antibody
excess tissue fluid that has leaked out of capillaries